Bump sharp from 0.30.4 to 0.30.6 in /docs/www (#36)

Bumps [sharp](https://github.com/lovell/sharp) from 0.30.4 to 0.30.6.
- [Release notes](https://github.com/lovell/sharp/releases)
- [Changelog](https://github.com/lovell/sharp/blob/main/docs/changelog.md)
- [Commits](lovell/sharp@v0.30.4...v0.30.6)

---
updated-dependencies:
- dependency-name: sharp
  dependency-type: indirect
...

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